Nokia E7 notifies "connect USB cable to device"

One week passed I have purchased nokia E7 and from today it continues giving me observe that ‘’connect USB link to device’’. I joined my Nokia E7 with my PC, it expresss “unsupported USB mechanism. Detach mechanism”. Then I attempted associating it to my charger it indicates the same observe ''unite USB link to mechanism''. So I can’t charge the telephone. If you don't mind help me! I am anxiously sitting tight for answer to understand it.

Weird Problems in my Nokia E71

I am challenging few unusual on my Nokia E71. Photographs and motion pictures I take are archived in telephone memory as a substitute for memory card. I attempted arranging the memory card and in addition did a hard reset of my telephone, but still carries on same.When thro I join the Nokia PC Suite and click on the pictures in the telephone memory I could probably see photographs have been disposed of simultaneously. I deleted the memory of the telephone with PC Suite just. Kindly help me.